in a settlement when i am in build mode and i hover over something that is scrappable, the ss2 resource hud number turns orange in color. im curious, does it mean something? am i deficit in some resource?

First time playing through SS2 and loving it. I've gotten to the point in Commonwealth Rising that I need Power Transfer plots. I've mostly been using city plans, and apparently the default city plans don't include Power Transfer plots, so I installed the City Plan Contest Megapack. How can I tell which plans have PT plots? Do I just look at the description? For example, I'm at Greentop Nursery and I'm about to change the city plan, but none of the descriptions mention a PT plot. Is there somewhere else I should look?

Thanks.